450 lines
12 KiB
Nix
450 lines
12 KiB
Nix
/*
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WARNING/NOTE: whenever you want to add an option here you need to
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either
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* mark it as an optional one with `?` suffix,
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* or make sure it works for all the versions in nixpkgs,
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* or check for which kernel versions it will work (using kernel
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changelog, google or whatever) and mark it with `versionOlder` or
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`versionAtLeast`.
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Then do test your change by building all the kernels (or at least
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their configs) in nixpkgs or else you will guarantee lots and lots
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of pain to users trying to switch to an older kernel because of some
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hardware problems with a new one.
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*/
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{ stdenv, version, kernelPlatform, extraConfig, features }:
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with stdenv.lib;
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''
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# Debugging.
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DEBUG_KERNEL y
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TIMER_STATS y
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BACKTRACE_SELF_TEST n
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CPU_NOTIFIER_ERROR_INJECT? n
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DEBUG_DEVRES n
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DEBUG_NX_TEST n
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DEBUG_STACK_USAGE n
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${optionalString (!(features.grsecurity or false)) ''
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DEBUG_STACKOVERFLOW n
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''}
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RCU_TORTURE_TEST n
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SCHEDSTATS n
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DETECT_HUNG_TASK y
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# Power management.
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${optionalString (versionOlder version "3.19") ''
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PM_RUNTIME y
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''}
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PM_ADVANCED_DEBUG y
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${optionalString (versionAtLeast version "3.10") ''
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X86_INTEL_PSTATE y
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''}
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INTEL_IDLE y
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CPU_FREQ_DEFAULT_GOV_PERFORMANCE y
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${optionalString (versionOlder version "3.10") ''
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USB_SUSPEND y
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''}
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# Support drivers that need external firmware.
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STANDALONE n
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# Make /proc/config.gz available.
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IKCONFIG_PROC y
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# Optimize with -O2, not -Os.
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CC_OPTIMIZE_FOR_SIZE n
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# Enable the kernel's built-in memory tester.
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MEMTEST y
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# Include the CFQ I/O scheduler in the kernel, rather than as a
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# module, so that the initrd gets a good I/O scheduler.
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IOSCHED_CFQ y
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BLK_CGROUP y # required by CFQ
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# Enable NUMA.
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NUMA? y
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# Disable some expensive (?) features.
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PM_TRACE_RTC n
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# Enable various subsystems.
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ACCESSIBILITY y # Accessibility support
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AUXDISPLAY y # Auxiliary Display support
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DONGLE y # Serial dongle support
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HIPPI y
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MTD_COMPLEX_MAPPINGS y # needed for many devices
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${optionalString (versionOlder version "3.2") ''
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NET_POCKET y # enable pocket and portable adapters
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''}
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SCSI_LOWLEVEL y # enable lots of SCSI devices
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SCSI_LOWLEVEL_PCMCIA y
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SCSI_SAS_ATA y # added to enable detection of hard drive
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SPI y # needed for many devices
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SPI_MASTER y
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WAN y
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# Networking options.
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IP_PNP n
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${optionalString (versionOlder version "3.13") ''
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IPV6_PRIVACY y
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''}
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NETFILTER_ADVANCED y
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IP_VS_PROTO_TCP y
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IP_VS_PROTO_UDP y
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IP_VS_PROTO_ESP y
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IP_VS_PROTO_AH y
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IP_DCCP_CCID3 n # experimental
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CLS_U32_PERF y
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CLS_U32_MARK y
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${optionalString (stdenv.system == "x86_64-linux") ''
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BPF_JIT y
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''}
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# Wireless networking.
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CFG80211_WEXT? y # Without it, ipw2200 drivers don't build
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IPW2100_MONITOR? y # support promiscuous mode
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IPW2200_MONITOR? y # support promiscuous mode
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HOSTAP_FIRMWARE? y # Support downloading firmware images with Host AP driver
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HOSTAP_FIRMWARE_NVRAM? y
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ATH9K_PCI? y # Detect Atheros AR9xxx cards on PCI(e) bus
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ATH9K_AHB? y # Ditto, AHB bus
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${optionalString (versionAtLeast version "3.2") ''
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B43_PHY_HT? y
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''}
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BCMA_HOST_PCI? y
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# Enable various FB devices.
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FB y
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FB_EFI y
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FB_NVIDIA_I2C y # Enable DDC Support
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FB_RIVA_I2C y
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FB_ATY_CT y # Mach64 CT/VT/GT/LT (incl. 3D RAGE) support
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FB_ATY_GX y # Mach64 GX support
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FB_SAVAGE_I2C y
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FB_SAVAGE_ACCEL y
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FB_SIS_300 y
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FB_SIS_315 y
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FB_3DFX_ACCEL y
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${optionalString (versionOlder version "3.9" || stdenv.system == "i686-linux") ''
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FB_GEODE y
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''}
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# Video configuration.
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# Enable KMS for devices whose X.org driver supports it.
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DRM_I915_KMS y
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${optionalString (versionOlder version "3.9") ''
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DRM_RADEON_KMS? y
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''}
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# Hybrid graphics support
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VGA_SWITCHEROO y
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# Sound.
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SND_DYNAMIC_MINORS y
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SND_AC97_POWER_SAVE y # AC97 Power-Saving Mode
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SND_HDA_INPUT_BEEP y # Support digital beep via input layer
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SND_USB_CAIAQ_INPUT y
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PSS_MIXER y # Enable PSS mixer (Beethoven ADSP-16 and other compatible)
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# USB serial devices.
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USB_SERIAL_GENERIC y # USB Generic Serial Driver
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USB_SERIAL_KEYSPAN_MPR y # include firmware for various USB serial devices
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USB_SERIAL_KEYSPAN_USA28 y
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USB_SERIAL_KEYSPAN_USA28X y
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USB_SERIAL_KEYSPAN_USA28XA y
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USB_SERIAL_KEYSPAN_USA28XB y
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USB_SERIAL_KEYSPAN_USA19 y
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USB_SERIAL_KEYSPAN_USA18X y
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USB_SERIAL_KEYSPAN_USA19W y
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USB_SERIAL_KEYSPAN_USA19QW y
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USB_SERIAL_KEYSPAN_USA19QI y
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USB_SERIAL_KEYSPAN_USA49W y
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USB_SERIAL_KEYSPAN_USA49WLC y
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# Filesystem options - in particular, enable extended attributes and
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# ACLs for all filesystems that support them.
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FANOTIFY y
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EXT2_FS_XATTR y
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EXT2_FS_POSIX_ACL y
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EXT2_FS_SECURITY y
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${optionalString (versionOlder version "4.0") ''
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EXT2_FS_XIP y # Ext2 execute in place support
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''}
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EXT3_FS_POSIX_ACL y
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EXT3_FS_SECURITY y
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EXT4_FS_POSIX_ACL y
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EXT4_FS_SECURITY y
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REISERFS_FS_XATTR? y
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REISERFS_FS_POSIX_ACL? y
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REISERFS_FS_SECURITY? y
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JFS_POSIX_ACL? y
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JFS_SECURITY? y
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XFS_QUOTA? y
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XFS_POSIX_ACL? y
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XFS_RT? y # XFS Realtime subvolume support
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OCFS2_DEBUG_MASKLOG? n
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BTRFS_FS_POSIX_ACL y
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UBIFS_FS_ADVANCED_COMPR? y
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${optionalString (versionAtLeast version "3.6") ''
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NFS_SWAP y
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''}
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${optionalString (versionAtLeast version "3.11") ''
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NFS_V4_1 y # NFSv4.1 client support
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NFS_V4_2 y
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''}
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NFSD_V2_ACL y
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NFSD_V3 y
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NFSD_V3_ACL y
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NFSD_V4 y
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NFS_FSCACHE y
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CIFS_XATTR y
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CIFS_POSIX y
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CIFS_FSCACHE y
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${optionalString (versionAtLeast version "3.12") ''
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CEPH_FSCACHE y
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''}
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${optionalString (versionAtLeast version "3.14") ''
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CEPH_FS_POSIX_ACL y
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''}
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${optionalString (versionAtLeast version "3.13") ''
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SQUASHFS_FILE_DIRECT y
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SQUASHFS_DECOMP_MULTI_PERCPU y
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''}
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SQUASHFS_XATTR y
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SQUASHFS_ZLIB y
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SQUASHFS_LZO y
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SQUASHFS_XZ y
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${optionalString (versionAtLeast version "3.19") ''
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SQUASHFS_LZ4 y
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''}
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# Security related features.
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STRICT_DEVMEM y # Filter access to /dev/mem
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SECURITY_SELINUX_BOOTPARAM_VALUE 0 # Disable SELinux by default
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DEVKMEM? n # Disable /dev/kmem
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${if versionOlder version "3.14" then ''
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CC_STACKPROTECTOR? y # Detect buffer overflows on the stack
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'' else ''
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CC_STACKPROTECTOR_REGULAR? y
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''}
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${optionalString (versionAtLeast version "3.12") ''
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USER_NS y # Support for user namespaces
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''}
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# AppArmor support
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SECURITY_APPARMOR y
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DEFAULT_SECURITY_APPARMOR y
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# Microcode loading support
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MICROCODE y
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MICROCODE_INTEL y
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MICROCODE_AMD y
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${optionalString (versionAtLeast version "3.11") ''
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MICROCODE_EARLY y
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MICROCODE_INTEL_EARLY y
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MICROCODE_AMD_EARLY y
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''}
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# Misc. options.
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8139TOO_8129 y
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8139TOO_PIO n # PIO is slower
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AIC79XX_DEBUG_ENABLE n
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AIC7XXX_DEBUG_ENABLE n
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AIC94XX_DEBUG n
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${optionalString (versionAtLeast version "3.3" && versionOlder version "3.13") ''
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AUDIT_LOGINUID_IMMUTABLE y
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''}
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B43_PCMCIA? y
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BLK_DEV_CMD640_ENHANCED y # CMD640 enhanced support
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BLK_DEV_IDEACPI y # IDE ACPI support
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BLK_DEV_INTEGRITY y
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BSD_PROCESS_ACCT_V3 y
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BT_HCIUART_BCSP? y
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BT_HCIUART_H4? y # UART (H4) protocol support
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BT_HCIUART_LL? y
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${optionalString (versionAtLeast version "3.4") ''
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BT_RFCOMM_TTY? y # RFCOMM TTY support
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''}
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CRASH_DUMP? n
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${optionalString (versionOlder version "3.1") ''
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DMAR? n # experimental
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''}
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DVB_DYNAMIC_MINORS? y # we use udev
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${optionalString (versionAtLeast version "3.3") ''
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EFI_STUB y # EFI bootloader in the bzImage itself
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''}
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FHANDLE y # used by systemd
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FUSION y # Fusion MPT device support
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IDE_GD_ATAPI y # ATAPI floppy support
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IRDA_ULTRA y # Ultra (connectionless) protocol
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JOYSTICK_IFORCE_232? y # I-Force Serial joysticks and wheels
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JOYSTICK_IFORCE_USB? y # I-Force USB joysticks and wheels
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JOYSTICK_XPAD_FF? y # X-Box gamepad rumble support
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JOYSTICK_XPAD_LEDS? y # LED Support for Xbox360 controller 'BigX' LED
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LDM_PARTITION y # Windows Logical Disk Manager (Dynamic Disk) support
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LEDS_TRIGGER_IDE_DISK y # LED IDE Disk Trigger
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LOGIRUMBLEPAD2_FF y # Logitech Rumblepad 2 force feedback
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LOGO n # not needed
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MEDIA_ATTACH y
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MEGARAID_NEWGEN y
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MODVERSIONS y
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MOUSE_PS2_ELANTECH y # Elantech PS/2 protocol extension
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MTRR_SANITIZER y
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NET_FC y # Fibre Channel driver support
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PPP_MULTILINK y # PPP multilink support
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PPP_FILTER y
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REGULATOR y # Voltage and Current Regulator Support
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${optionalString (versionAtLeast version "3.6") ''
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RC_DEVICES? y # Enable IR devices
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''}
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${optionalString (versionAtLeast version "3.10") ''
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RT2800USB_RT55XX y
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''}
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SCSI_LOGGING y # SCSI logging facility
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SERIAL_8250 y # 8250/16550 and compatible serial support
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SLIP_COMPRESSED y # CSLIP compressed headers
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SLIP_SMART y
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THERMAL_HWMON y # Hardware monitoring support
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${optionalString (versionAtLeast version "3.15") ''
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UEVENT_HELPER n
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''}
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${optionalString (versionOlder version "3.15") ''
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USB_DEBUG? n
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''}
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USB_EHCI_ROOT_HUB_TT y # Root Hub Transaction Translators
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USB_EHCI_TT_NEWSCHED y # Improved transaction translator scheduling
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X86_CHECK_BIOS_CORRUPTION y
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X86_MCE y
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# Linux containers.
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RT_GROUP_SCHED? y
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CGROUP_DEVICE? y
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${if versionAtLeast version "3.6" then ''
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MEMCG y
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MEMCG_SWAP y
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'' else ''
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CGROUP_MEM_RES_CTLR y
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CGROUP_MEM_RES_CTLR_SWAP y
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''}
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DEVPTS_MULTIPLE_INSTANCES y
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BLK_DEV_THROTTLING y
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CFQ_GROUP_IOSCHED y
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# Enable staging drivers. These are somewhat experimental, but
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# they generally don't hurt.
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STAGING y
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# PROC_EVENTS requires that the netlink connector is not built
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# as a module. This is required by libcgroup's cgrulesengd.
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CONNECTOR y
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PROC_EVENTS y
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# Tracing.
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FTRACE y
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KPROBES y
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FUNCTION_TRACER y
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FTRACE_SYSCALLS y
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SCHED_TRACER y
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STACK_TRACER y
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${optionalString (versionAtLeast version "3.10") ''
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UPROBE_EVENT y
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''}
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FUNCTION_PROFILER y
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RING_BUFFER_BENCHMARK n
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# Devtmpfs support.
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DEVTMPFS y
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# Easier debugging of NFS issues.
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${optionalString (versionAtLeast version "3.4") ''
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SUNRPC_DEBUG y
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''}
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# Virtualisation.
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PARAVIRT? y
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${if versionAtLeast version "3.10" then ''
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HYPERVISOR_GUEST? y
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'' else ''
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PARAVIRT_GUEST? y
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''}
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KVM_GUEST? y
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${optionalString (versionOlder version "3.7") ''
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KVM_CLOCK? y
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''}
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XEN? y
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XEN_DOM0? y
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${optionalString ((versionAtLeast version "3.18") && (features.xen_dom0 or false)) ''
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PCI_XEN? y
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HVC_XEN? y
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HVC_XEN_FRONTEND? y
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XEN_SYS_HYPERVISOR? y
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SWIOTLB_XEN? y
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XEN_BACKEND? y
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XEN_BALLOON? y
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XEN_BALLOON_MEMORY_HOTPLUG? y
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XEN_EFI? y
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XEN_HAVE_PVMMU? y
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XEN_MCE_LOG? y
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XEN_PVH? y
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XEN_PVHVM? y
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XEN_SAVE_RESTORE? y
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XEN_SCRUB_PAGES? y
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XEN_SELFBALLOONING? y
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XEN_STUB? y
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XEN_TMEM? y
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''}
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KSM y
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${optionalString (!stdenv.is64bit) ''
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HIGHMEM64G? y # We need 64 GB (PAE) support for Xen guest support.
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''}
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${optionalString (versionAtLeast version "3.9" && stdenv.is64bit) ''
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VFIO_PCI_VGA y
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''}
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VIRT_DRIVERS y
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# Media support.
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${optionalString (versionAtLeast version "3.6") ''
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MEDIA_DIGITAL_TV_SUPPORT y
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MEDIA_CAMERA_SUPPORT y
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MEDIA_RC_SUPPORT y
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''}
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${optionalString (versionAtLeast version "3.7") ''
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MEDIA_USB_SUPPORT y
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''}
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# Our initrd init uses shebang scripts, so can't be modular.
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${optionalString (versionAtLeast version "3.10") ''
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BINFMT_SCRIPT y
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''}
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# Enable the 9P cache to speed up NixOS VM tests.
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9P_FSCACHE? y
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9P_FS_POSIX_ACL? y
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# Enable transparent support for huge pages.
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TRANSPARENT_HUGEPAGE? y
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TRANSPARENT_HUGEPAGE_ALWAYS? n
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TRANSPARENT_HUGEPAGE_MADVISE? y
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# zram support (e.g for in-memory compressed swap).
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${optionalString (versionAtLeast version "3.4") ''
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ZSMALLOC y
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''}
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ZRAM m
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${optionalString (versionAtLeast version "3.17") "NFC? n"}
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# Enable firmware loading via udev. Only needed for non-declarative
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# firmware in /root/test-firmware.
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${optionalString (versionAtLeast version "3.17") ''
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FW_LOADER_USER_HELPER_FALLBACK y
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''}
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${kernelPlatform.kernelExtraConfig or ""}
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${extraConfig}
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''
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